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EP0798177A2 - Système de retenue des occupants de véhicule avec un tendeur de sangle - Google Patents

Système de retenue des occupants de véhicule avec un tendeur de sangle Download PDF

Info

Publication number
EP0798177A2
EP0798177A2 EP97104204A EP97104204A EP0798177A2 EP 0798177 A2 EP0798177 A2 EP 0798177A2 EP 97104204 A EP97104204 A EP 97104204A EP 97104204 A EP97104204 A EP 97104204A EP 0798177 A2 EP0798177 A2 EP 0798177A2
Authority
EP
European Patent Office
Prior art keywords
restraint system
tubular body
vehicle occupant
occupant restraint
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97104204A
Other languages
German (de)
English (en)
Other versions
EP0798177A3 (fr
EP0798177B1 (fr
Inventor
Franz Wier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Occupant Restraint Systems GmbH
Original Assignee
TRW Occupant Restraint Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Publication of EP0798177A2 publication Critical patent/EP0798177A2/fr
Publication of EP0798177A3 publication Critical patent/EP0798177A3/fr
Application granted granted Critical
Publication of EP0798177B1 publication Critical patent/EP0798177B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/18—Anchoring devices
    • B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
    • B60R22/1952—Transmission of tensioning power by cable; Return motion locking means therefor

Definitions

  • the invention relates to a vehicle occupant restraint system, having a belt tensioner which, in the event of a collision, displaces a belt link via a tension transmission element, and a tubular body which surrounds the tension transmission element in an area outside the belt tensioner housing and is plastically deformed by a stationary counterpart when the belt tensioner is actuated.
  • the displacement of the belt linkage element when the belt tensioner is activated is in principle limited by the available stroke of the belt tensioner drive, for example a piston / cylinder unit. The end of this distance is limited by a stop, when it reaches extremely high deceleration values. All components of the system have to be dimensioned for the associated high loads.
  • a generic vehicle occupant restraint system is known from DE 94 04 272.1 U1.
  • a sleeve is provided which connects a traction rope attached to the piston of the belt tensioner to the belt buckle.
  • the sleeve serves as an impact absorber, by striking the rope deflection at the end of the tensioning path.
  • the sleeve thus arranged increases the overall construction volume of the vehicle occupant restraint system.
  • the object of the invention is to provide a small-sized vehicle occupant restraint system in which effective damping is provided for the moving parts at the end of the tensioning path.
  • the tubular body adjoins or is part of the outer housing of the belt link.
  • the belt link takes the tubular body with it in order to press it into the curved guide, where it is deformed. If the tubular body is part of the outer housing, fewer parts are also necessary.
  • the belt link member is preferably designed as a belt buckle, to which the tubular body adjoins.
  • tubular body can also be spaced from the belt link and attached to the tension transmission member, so that the belt link does not have to press the tubular body into the curved guide.
  • the belt linkage element can also comprise a rope thimble, to which the tubular body adjoins according to a further embodiment. This is advantageous if the rope thimble protrudes from the outer housing of the belt link.
  • the tubular body is preferably made of aluminum or a light metal.
  • plastics, other elastic materials or other metals change their properties so much beyond the above-mentioned extreme temperatures that the desired damping effect does not occur to the desired extent.
  • the course of the force absorbed by the tubular body over the tensioning path is better when using aluminum or light metal than when using a steel sleeve, as is obviously used in the vehicle occupant restraint system according to DE 94 04 272.1 U1, so that overall a better one Damping effect results.
  • the geometry of the tubular body is further advantageously chosen so that the deformation energy absorbed by it increases linearly over its deformation path. This favors a constant deceleration of the belt link in the final phase of its movement through the body, as a result of which undesired destruction of parts of the restraint system can be avoided.
  • the tubular body has a section with a continuously decreasing wall thickness or is a tubular, bellows-like body.
  • FIG. 1 shows a vehicle occupant restraint system which comprises a belt tensioner 3 which consists of a pyrotechnically actuated piston / cylinder unit.
  • a cable transmission member 11 in the form of a cable is at one free end with the piston of the piston / cylinder unit and at the opposite free end with a belt link 13 connected in the form of a buckle.
  • a cable deflection 25, which has a curved guide 27, adjoins the belt tensioner 3. Through the guide 27, the train transmission member 11 is bent obliquely to the longitudinal axis of the belt tensioner 3, so that the belt link member 13 is inclined upwards for better engagement of a tongue in the vehicle.
  • a tubular body 9 is arranged adjacent to a housing extension 14 of the outer housing of the belt link 13, whereby it surrounds the tension transmission member 11.
  • the tubular body 9 is made of aluminum or a light metal.
  • the body 9 can either adjoin the outer housing of the belt link 13 or, according to FIG. 1, the narrow housing extension 14, which covers a thimble, or directly adjoin a thimble.
  • the outer housing of the belt link member 13 also includes the body 9, so that the parts designated according to FIG. 1 with 13, 14 and 9 are integrally connected to one another.
  • the body 9 shown in FIG. 5 has a section with a continuously decreasing wall thickness, as a result of which the course of the damping, which is to be achieved by elastic deformation of the body 9, changes.
  • the belt tensioner 3 is actuated and the piston contained therein pulls the belt link member 13 closer to the cable deflection 25 via the cable transmission link 11. Since the body 9 adjoins the housing extension 14, the belt link 13 takes the tubular body 9 with this movement and this is pushed into the curved guide 27, which forms the counterpart, and bent by the guide 27.
  • the guide 27 has a funnel-shaped opening to the belt link 13 out to facilitate the penetration of the body 9.
  • the wall thickness and geometry of the body 9 can be matched to the geometry of the guide 27 in such a way that a predeterminable, linear increase in the deformation energy over the deformation path of the body 9 results.
  • the body 9 does not adjoin the housing extension 14, but is spaced apart from it and adjoins the guide 27.
  • the body 9 is firmly pressed onto the train transmission member 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Vibration Dampers (AREA)
EP97104204A 1996-03-28 1997-03-13 Système de retenue des occupants de véhicule avec un tendeur de sangle Expired - Lifetime EP0798177B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29605818U 1996-03-28
DE29605818U DE29605818U1 (de) 1996-03-28 1996-03-28 Fahrzeuginsassen-Rückhaltesystem mit einem Gurtstraffer

Publications (3)

Publication Number Publication Date
EP0798177A2 true EP0798177A2 (fr) 1997-10-01
EP0798177A3 EP0798177A3 (fr) 1998-03-18
EP0798177B1 EP0798177B1 (fr) 2000-05-17

Family

ID=8021876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104204A Expired - Lifetime EP0798177B1 (fr) 1996-03-28 1997-03-13 Système de retenue des occupants de véhicule avec un tendeur de sangle

Country Status (6)

Country Link
US (1) US6095615A (fr)
EP (1) EP0798177B1 (fr)
JP (1) JP2887121B2 (fr)
CZ (1) CZ93997A3 (fr)
DE (2) DE29605818U1 (fr)
ES (1) ES2107405T3 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330334A (en) * 1997-06-02 1999-04-21 Alliedsignal Ltd Buckle pretensioner for a vehicle
DE20200741U1 (de) * 2002-01-18 2002-05-29 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Fahrzeuginsassen-Rückhaltesystem
DE10209235B4 (de) * 2002-03-04 2006-09-14 Daimlerchrysler Ag Sicherheitsvorrichtung für einen Komfortsitz
JP4573295B2 (ja) * 2004-01-14 2010-11-04 タカタ株式会社 シートベルト装置
US7398998B2 (en) * 2003-07-25 2008-07-15 Key Safety Systems, Inc Wire, wire rope or cable assemblies for seat belt component
JP2005280667A (ja) * 2004-03-31 2005-10-13 Takata Corp プリテンショナー
US7380832B2 (en) * 2005-04-05 2008-06-03 Takata Seat Belts, Inc. Pretensioner with integrated gas generator
US7533902B2 (en) * 2006-05-31 2009-05-19 Key Safety Systems, Inc. Seat belt pretensioner using preformed tubes
JP5182843B2 (ja) * 2007-02-15 2013-04-17 テイ・エス テック株式会社 車両用シート
DE102008051518B4 (de) * 2008-10-14 2013-01-31 TAKATA Aktiengesellschaft Straffeinrichtung zum Straffen eines Sicherheitsgurtes und Verfahren zu deren Herstellung
JP5473322B2 (ja) * 2008-12-29 2014-04-16 テイ・エス テック株式会社 車両用シート
KR101209960B1 (ko) * 2010-03-08 2012-12-07 현대자동차주식회사 시트 높이 조절장치와 연동하는 차량의 쉴드 커버 어셈블리
DE102022122770B4 (de) * 2022-09-08 2024-12-12 Autoliv Development Ab Straffvorrichtung für eine Sicherheitsgurtkomponente

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138833A (en) * 1974-09-28 1976-03-31 Matsushita Electric Industrial Co Ltd Injihoshiki
JPS56116056U (fr) * 1980-02-04 1981-09-05
JPS5825156U (ja) * 1981-08-12 1983-02-17 トヨタ自動車株式会社 シ−トベルト引締め装置
ES2033614T3 (es) * 1991-02-20 1994-12-01 Trw Repa Gmbh Dispositivo de retrotensado en un sistema de cinturones de seguridad para vehiculos.
DE4136623A1 (de) * 1991-11-07 1993-05-13 Trw Repa Gmbh Gurtstraffer fuer fahrzeug-sicherheitsgurtsysteme
JP3240068B2 (ja) * 1992-01-21 2001-12-17 タカタ株式会社 シートベルト装置のプリテンショナ
JP3135685B2 (ja) * 1992-06-16 2001-02-19 タカタ株式会社 シートベルト装置のバックルプリテンショナ
DE4224924A1 (de) * 1992-07-28 1994-02-03 Trw Repa Gmbh Sicherheitsgurt-Rückhaltesystem mit Gurtstraffer
DE9303276U1 (de) * 1993-03-06 1993-04-22 TRW Repa GmbH, 7077 Alfdorf Gurtstraffer in einem Sicherheitsgurtsystem für Fahrzeuge
DE4332206C2 (de) * 1993-09-22 1997-08-14 Hs Tech & Design Antriebsvorrichtung
US5607185A (en) * 1993-11-26 1997-03-04 Nippondenso Co., Ltd. Belt tightener for seat belt
JP2981393B2 (ja) * 1994-01-11 1999-11-22 株式会社東海理化電機製作所 バックル引込み装置
JPH07242156A (ja) * 1994-01-11 1995-09-19 Tokai Rika Co Ltd 加速度センサ制御装置
DE9404272U1 (de) * 1994-03-14 1994-05-11 Autoliv Development AB, Vårgårda Schloßstrammer für Fahrzeugsicherheitsgurte
JPH0848211A (ja) * 1994-05-31 1996-02-20 Nippondenso Co Ltd シートベルト引き締め装置
DE4422022A1 (de) * 1994-06-23 1996-01-04 Takata Europ Gmbh Sicherheitsgurtstraffer für Kraftfahrzeuge
US5568940A (en) * 1994-07-27 1996-10-29 Trw Vehicle Safety Systems Inc. Belt tightener for a vehicle safety belt system
JPH099171A (ja) * 1995-06-22 1997-01-10 Sony Corp 画像出力装置
US5671949A (en) * 1995-12-20 1997-09-30 Trw Vehicle Safety Systems Inc. Seat belt pretensioner

Also Published As

Publication number Publication date
US6095615A (en) 2000-08-01
JPH106925A (ja) 1998-01-13
EP0798177A3 (fr) 1998-03-18
ES2107405T1 (es) 1997-12-01
ES2107405T3 (es) 2000-10-16
DE29605818U1 (de) 1996-07-25
CZ93997A3 (en) 1997-10-15
EP0798177B1 (fr) 2000-05-17
JP2887121B2 (ja) 1999-04-26
DE59701689D1 (de) 2000-06-21

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